conway



` (No Model.) 2 Sheets--Sheet 2. G. 0. S. CONWAY.

CAR BRAKB,

Patented July 29, 1884.

TATES Mam FFKCEW` rren- GEORGE O. S. CON \VAY, OF STNEFIELD, QUEBEC, ASSIGNOR TO HIMSELF, AND FREDERICK FAIRMAN AND JAMES COOPER, BOTH OF MONTREAL, CANADA.

CAR BRAKE.

SPECIPICATION forming part of Letters Patent'No. 302.651, dated July 29, 1884.

Application filed March 5, 1884, (No model.)

"To all whom it 'may cmccern: tion-wheel, Z. This, for convenience, will usui Be it known that I, GEORGE O. S. CONWAY, ally be made in two parts bolted together, as o of Stoncficld, in the Provnce of Quebec, Doshown, so that they may be applied to the ninion of Canada, have invented an InproveaXle without removing the whecls D. Around ment in Railway-Car Brakes,-of which the the axle there are also rings or sleeves n n, following is a specification. which preferably are made in halves and This invention is specially intended for bolted together. They clamp the aXle tightly, freight cars, and it is partially automatic. so as to prevent notion to the wheel Z endwise When the brake-rope is pulled, the brake of the axle. This wheellis free to turn either mechanism is applied, and the revolution of upon the axle itself or upon a sleeve surroundthe wheels is made to wind up the brake-chain ing the axle and *passing into the wheel l. I and apply the brakes, the intervening wheels prel'er to make the sleeve n in the forn shown 6 and devices being operated by friction, so that sectionally in Figs. 3 and 4, wherein the sleevc there is no rigid connections, and the parts is made with a central ring, 3, and the wheel will slide, one on the other, after the proper Z is recessed around the inner surface, so as to pressure is given to the brakes. I also make set over this ring 3. The winding-drum o is use of a latching clevice that is operated by upon an axle, 0', sustained by the triangular 6 the draft head or bar, and acts to disconnect or lever frames 1). These frames are pivoted the brake when the train is drawn ahead. By at q on a support bolted to the central bea-rer this arrangement the control of a freight-train of the truck-frame. Upon one end of the y is in the hands of the engineer almost as efdrum there is a loose pulley or wheel, o The 'l'ectually as the air brakes made use of in paswire rope or chain r' from the brake-lever Ic is scnger-trains. fastened to an eye upon this drum '0.

It is to be understood that my invention is The size and shape of the parts are such 2 5 not limited to freight-trains. l that in the normal position the drum o and In the drawings, Figure l is a side View of frane 13 are swung up, so that the wheels land the apparatus, the truck being partially in 7' do not touch each other; hence the wheelZ section. Fig. 2 is a plan View with parts of revolves with the aXle ewithout loss of power; the truck removed or broken open. Figs. 3 but when the frames 1) are swung upon the 30 and 4 show sections of the winding-barrel and pivots q the wheel r is brought (either from friction-wheel. Fg. isaside view,partially below or from above) into contact with the in section, of the latching device; and F'g. 6 wheel Z, and there will be a suffici'cntly force- S is an end view of the same and the draw-bar ful action to crcatea friction of theloose wheels and roller. upon the sleeves or axles and of' the wheels 3 5 The body of the car is of any desired charwith each other at the points of contact, so acter, a portion only being shown, A being a that the drum or winch 0 will" be revolved part of the platform, and B a part of the top with the necessary force, and this revolving- 5 of the car upon which the usual walk or board, power, being derived from frictonal contact, b, is applied. The truck-frame is composed is not a positive rotary motion, but, on the 40 ,of the cross-bearer c, with a king-bolt, d. The contrary, one that will yield, and hence there side frames and hangers are of any desired will b`e no risk of breakage. I remark that character. The wheels D are connected by' the wheelsl and a' might have teeth in their the aXles e, and the brake-bars f are hung by surfaces, as they will only act by friction to the links g, and provided with shoes h, and revolve the drum o,- butIpreferthat frictional 5 the lever k pivoted upon one of the bars f, contact of the surfaccs only be employed.

and connected by a rod or chain with the other The power which acts to swing the frame p box. These parts maybe of any desired charand force the wheels Z and 9' into contact is a 5 acter. Upon one of the aXles e there is a fricspring. 'I prefer the expansive spring t,placed between the upper end of the lever-frane p and support on the bearer of .the truck. I cmploy a link, u, connected at one end to the lever-france 19, and at the other end said link is provided with the latch-piece e. The draft head and bar o' is free to move endwise a limited distance, as usual. Upon its under side is adownward projection, 5, and beneath the draw-bar is a roller, 6, with a notch or toe upon its upper surface. When the train is drawn ahead the roller is partially rotated by the projection 5 coming into contact with the toe on the upper surface of the roller, and there is an arm, 7 ,projecting from the roller and actng against the arm 8 at the end of the link u, to draw back such link u, and compress the spring t, and separate the wheels land r, and liberate the brake. This done, the latch o drops and holds the parts so that the brake will not be applied by the ordinary e movements of the train, either in going ahead,

hacking, or stopping. This latch '2) may be raised by hand, there being a handle, upon u the lever end of thelink u, by which the parts nay be lifted, so as to disengage the latch o and allow the brake mechanisn to assume a position which causes the brakes to be ap pliedif the car is moved in either direction.

In order to place the control of the brakcs in the charge of the engineer or conductor, I make use of a brake-rope, R, passing from end to end of the train, preferably over the cars, and the same is made to operate the chain or bar T, and lift the latch o, and allow the brakes to operate.. Any suitable dev'ice may intervene between this brake-rope R and the'chain T. I prefer to use a lever, L, pivoted at 15 to a standard, 16, at the side of the board walk b, and near the ends of this lever there are rollers or sheaves 17 and guide-eyes. The rope R passes over and under these respective sheaves, and is held in place by the guide-eyes. The normal position of this lever L is vertical, or nearly so, and it is eaused to assume that position by a weight or spring. There is a chain,

chains, unlatches the connecting-rods u of each brake apparatus and allows the springs to act in applying the brakes, as aforesaid.

I claim as my invention- V 1. The whecls and axlcs e and the brakes, levers, and rods, in combination with the wheel Z upon the aXle e, the lever 17, pivoted to the truck-frame, the friction-wheel r andwindingdrum supported upon such frame, the chain r' to the winding-drum, the latch-rod u, spring t, and lever v, substantially as set forth.

2. The drum o and loose pulley or wheel r around the end thereof, andthe triangular pivoted frame,in combination With the wheel Z and aXle e, upon which such wheel Z is free to turn, the brake, levers, and rods, and the connection to the drum, substantially as specified.

3. The combination,with the latch and link, and the lever, winch-barrcl, and brake meehanism, of the draw-bar, a turning roller acted upon by the draw-bar, and an arm to move the link, and a latch to relieve the brake mechanism when the train is drawn ahead, substantially as set forth.

4. The combination,with the brake-rope, of a lever pivoted to a standard, and provided with sheaves and guides at the ends for the v brake-rope, a connection, r, the latch-rod u, spring t, lever p, winding-drum 0, frctionwheels Z r, brake-blocks, levers, and connections, substantially as specified.

Signed by me this 23d day of February, AJ). 1884.

G. O. S. CONWAY.

Witnesses:

GEO. T. PrNeKNEY, VVIILLTAM Mor'r. 

